MXPA00011455A - A disposable liquid containing and dispensing package and method for its manufacture - Google Patents

Abstract

A disposable liquid containing and dispensing package. The package has a flexible bag with an upper (15) and a lower (20) bag wall. The upper and lower bag walls have a periphery (25, 30, 35) and a middle portion. The upper bag wall has a spout (50) positioned within the middle portion of the wall. The spout has a first side and a second side. A dip strip (60) is attached to the upper bag wall on the first side of and spaced apart from the spout and attached to the middle portion of the upper bag wall on the second side of and spaced apart from the spout.

Description

DISPOSABLE CONTAINER FOR CONTAINING AND RETRIEVING A LIQUID AS WELL AS METHOD FOR ITS MANUFACTURE TECHNICAL FIELD The present invention relates to a bag for a box-type package in a box and an apparatus for its manufacture, and more particularly refers to a bag with a strip of immersion placed and sealed inside and to an apparatus for its manufacture. BACKGROUND OF THE INVENTION Box-in-box type containers are well known for containing and dispensing liquids such as syrups for later mixing soda dispensers. Such known packages include an outer protective box and support made of corrugated cardboard and a collapsible, flexible, internal plastic bag containing the syrup. The plastic bag has a type to feed the syrup to the subsequent mixing soda dispenser through a hose and a pump. A plastic immersion strip or dip tube is frequently included within the bag to facilitate extraction of the syrup. The dip strip prevents the bag from collapsing on itself while the syrup is being extracted. An example of a commercially available bag with an immersion strip placed therein is shown in U.S. Patent No. 5,647,511 to Bond. This reference describes a plastic bag with a pick at one end. A "plastic evacuation insert" or an immersion strip has a mounting ring with a multi-channel immersion strip extending radially therefrom. The dip strip is directly connected to the peak and directly through the mouth of the beak. The dip strip does not extend over the total length of the bag. Even though, the design of this dip strip helps extract the fluid from the bag, the design has numerous drawbacks. First, since the dip strip is not anchored at both ends, the free end of the dip strip can sometimes pierce the bottom end of the bag. In addition, the free end of the dip strip can be twisted or bent inside the bag and allow a part of the bag to seal and become inaccessible. Second, since the peak and dip strip are directly connected, the fluid filling time of the bag is relatively long and inadequate. There is insufficient clearance between the peak and the dip strip to allow the emptying of a large volume of fluid in the bag at a given time. The dip strip and the peak create a bottleneck effect that affects the filling time of the bag. Third, attaching the dip strip directly through the peak also allows the incoming fluid stream to strike and move the dip strip away from the peak. Once the dip strip has been displaced, the wall of the bag opposite the peak can be sucked into the peak. In this case, the peak is sealed even when the bag still contains fluid. Other types of known dip strips include those described in WO 86/00868 which shows a flexible container with a ribbed dipping strip which can be sealed between the end seals and US Pat. No. 4,998,990 .which shows the attachment of an immersion strip on the outer surface of the bag wall. Although both immersion strips are fixed either on the end seals or along the entire length of the pouch wall, no reference offers a means for pushing the fluid by suction. Another example of a bag with an immersion strip is shown in U.S. Patent No. 5,749,493 to Boone et al., Owned by Coca-Cola Company, the assignee of the present invention. This reference shows, inter alia, a dipping strip with ribs sealed between the upper and lower walls of a bag at the upper and lower ends. This design provides sufficient clearance between the dip strip and the peak to allow a faster filling time since the dip strip and the peak are not directly connected. further, since both ends of the dip strip are anchored, the dip strip remains in place at all times to reduce the likelihood of the bag collapsing. U.S. Patent No. 5,749,493 which is incorporated herein by reference. A further improvement is shown in the joint North American patent No. 5,915,596 which is incorporated herein by reference. This reference also shows, inter alia, a dipping strip with ribs sealed between the upper and lower bag walls at the upper and lower ends. In this reference, however, the ends of the immersion strip sealed within the bag walls have notches to remove the rib portion of the seal immersion strip. By removing this portion of the dip strip, it is possible to obtain a higher quality seal between the walls of the bag and the dip strip. The joint North American patent No. 6,027,438, which is incorporated herein by reference, describes in detail the apparatus and method of making said bag efficiently and quickly. COMPENDIUM OF THE INVENTION The present invention offers a disposable container for containing and dispensing liquid. The package has a flexible bag with an upper bag wall and a lower bag wall. The upper and lower bag walls have a periphery and a middle portion. The upper bag wall has a peak placed within the middle portion of the wall. The beak has a first side and a second side. An immersion strip is fixed on the upper bag wall on the first side and spacing of the spout, and is fixed on the middle portion of the upper boom wall on the second and spicy side of the spout. Specific embodiments include fixing the dip strip on the top wall of the bag at a predetermined distance from the peak. The dip strip is fixed on the periphery and / or the middle portion of the bag top wall on the first side of the peak. In addition to the middle portion, the dip strip can also be fixed on the periphery of the bag top wall on the second side of the peak. The dip strip is fixed on the upper bag wall at one or more contact points. The contact points in the middle portion of the upper bag wall may include a pair of upper contact points, a pair of central contact points, and a pair of lower contact points. In fact, any number of contact points can be used. The points of contact must be sufficiently spaced between them to allow the passage of fluid between them and in the dip strip. The bag walls and the dip strip can be made of a plastic material. The contact points can be found in an area of fused plastic material. The dip strip may also have a flat base and a central portion with ribs. The flat base of the dip strip may also have a flat base and a central portion with ribs. The flat base of the dip strip is fixed on the top wall of the bag at the contact points while the center potion with ribs generally faces the top wall of the bag. The central portion with ribs has essentially parallel ribs in order to provide several passages for liquid there. The passages for liquid remain in liquid communication with the peak as the bag collapses progressively as the fluid is removed. The dip strip further includes a pair of flat ends. The flat ends include the flat base with the center portion with ribs removed. The flat ends of the dip strip are sealed between said bag walls and the periphery. A method for producing bag of the present invention includes the steps of fixing the type on the first bag wall, fixing the dip strip on the first bag wall in at least one location spaced a predetermined distance apart from the peak, and sewing the bag walls in one or several peripheral edges thereof in order to form the bag. The method may further include the step of sewing the ends of the dip strip between one or more peripheral ends of the bag walls. An apparatus for manufacturing the bag of the present invention includes a device for advancing a predetermined length of a continuous strip of immersion strip material along a predetermined path, a device for drilling a hole in the immersion strip material. , a device for inserting the dip strip material adjacent to a first continuous strip of flexible material, a device for holding the dip strip material on the first continuous strip of flexible material at one or more points of contact, a device for advancing a second continuous strip of flexible material, a device for sealing several sidelines along the continuous strips of the flexible material, and a device for sealing the dip strip between the continuous strips of flexible material in the vicinity of the orifice of the flexible material. dipping strip in such a way that a transverse seal is created and a flexible bag is formed. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial section view of the bag of the present invention showing the dip strip. Figure 2 is a cross-sectional view of the bag, along line 2-2 of Figure 1.

Figure 3 is a cross-sectional view through the dip strip taken along line 3-3 of Figure 1. Figure 4 is a cross-sectional end view through the flat ends of the dip strip. dipping along the line 4-4 of Figure 1. Figure 5 is a schematic view showing the main elements involved in the manufacture of a bag in accordance with the present invention. Figures 6A-C are cross-sectional schematic views showing the main elements of the present invention that are employed in the manufacture of the bag. Figure 7 is a diagrammatic view of a half-filled bag of the present invention in a box and connected to a subsequent mixing jet through a hose with a pump there. DETAILED DESCRIPTION OF THE INVENTION THE BAG Referring now to the drawings in which similar reference numerals refer to like parts in the various views, figures 1-4 show the bag 10 of the present invention. The bag 10 includes a pair of pairs of flexible 15, 20 sealed together at a first end 25, a second end 30, and along side sides 35. The ends 25, 30 and side sides 35 form a periphery of each wall 15,20 with the rest of each wall 15,20 forming a middle portion. Each wall 15, 20 preferably has two (2) folds of material, an inner fold 40 and an outer fold 45. The inner fold 40 can be a linear low density polyethylene ("LLDPE") fabric of 0.0508 mm (two (2) thousandths of an inch) or similar materials. The outer fold 45 may be an extrusion layer of 0.1016 mm (four (4) thousandths of an inch) of LLDPE / nylon / LLDPE, with tie layers on each side of the nylon, or similar materials. The two (2) layers of LLDPE are preferably approximately 0.0356 mm (approximately 1.4 mils), the nylon layer is approximately 0.0254 mm (approximately 1.0 mils), and the bonding layers are approximately 0.00254 mm (approximately 0.1 thousandth of an inch). The bag 10 has a spout 50 positioned near one of the ends 25.30 of the bag. The spout 50 may have an internal valve 51 there and is generally closed by a cap 52. As shown in Figure 2, the spout 50 also has a flange 55 surrounding the spout 50. The flange 55 is sealed on the top wall of bag 15 to keep peak 50 in place and to prevent leakage of fluid from bag 10. Bag 10 is filled and emptied through peak 50. Bag 10 further includes a flexible dip strip 60 aligned below the peak 50 and of the upper wall 15. the dip strip 60 offers a fluid communication between the peak 50 and the ends of the bag 10. By attaching the dip strip 60 to the ends 25.30 of the bag 10, the probability of accidentally folding the bag 10 between the peak 50 and the dip strip 60 during the evacuation is reduced or minimized. Any accidental bending can cause incomplete emptying of the bag 10. The dip strip 60 is preferably made of a flexible plastic material such as extruded polyethylene or similar types of flexible heat-sealable materials. As shown in Figures 1 and 3, the dip strip 60 includes a flat base 65, several ribs 70 running substantially over the entire length of the dip strip 60 along the flat base 65, a first end 75 , and a second end 80. The ribs 70 are preferably parallel to each other and offer several passages for liquids 74 which, in turn, offer fluid communication substantially along the entire dip strip 60. As shown in Figures 1 and 4, the first end and the second end 75,80 of the dip strip 60 have substantially a "U" shape, insofar as the ribs 70 and this portion of the flat base 65 below the ribs 70 have been removed, such that only the ends of the flat base 65 remain, that is, only one or more flanges 68 of the flat base 65 remain. Once this material is removed with ribs, the first end and the second end 75,80 of the dip strip 60 are sealed in place between the two walls 15, 20 at the first end 25 and the second end 30 of the bag 10. The dip strip 60 is thus fixed within the bag 10 and placed substantially below the peak 50. In addition to fixing the dip strip 60 within the walls 15, 20 of the bag 10 at its periphery, i.e. the first end and the second end 25,30, the immersion strip 60 is also fixed on the upper wall 15 at one or more contact points 90 placed along the middle part of the bag 10. The contact points 90 preferably connect the flat base 65 of the dip strip 60 to the top wall 15. The contact points 90 are preferably created by a heat sealing method such that the plastic material of the dip strip 60 and the wall Top 15 are merged among them. The contact points 90, however, can also be created through adhesives or other types of conventional fastening methods or devices. Even though the term "point" of contact is employed herein, it is understood that the contact area can have almost any shape or size. By connecting the dip strip 60 with the top wall 15 at the contact points 90, the ribs 70 and the top wall 15 ensure that the fluid passages 74 operate efficiently to remove fluid from the ends of the bag, way very similar to the way a straw extracts fluid from a cup. Fluid enters the fluid passages 74 through the spaces between the contact points 90 and the fluid is drawn into the peak 50 by suction. The contact points 90 are preferably spaced apart by at least a predetermined distance from the peak 50. This predetermined distance allows some "flexibility" in the dip strip 60 to allow high-speed filling of the bag 10. Since the dip strip 60 is not connected on top wall 15 in the immediate vicinity of peak 50, dip strip 60 does not create the bottleneck effect found in the prior art. This embodiment of the present invention employs six (6) contact points 90. These contact points 90 include two (2) upper contact points 90.91, two (2) center contact points 93.94, and two ( 2) lower contact points 95,96. The upper contact points 91,92 are placed towards the first end 25 of the bag 10 at a sufficient distance from the peak 50 in the direction of the length of the bag 10 in order to allow an unimpeded filling of the bag 10 to through the peak 50. A first upper contact point 91 is placed on the flat base 65 on the side of the ribs 70 and a second upper contact point 92 is placed on the opposite side of the ribs 70 in the direction perpendicular to the length of the bag 10. The central set of contact points 93.94 is placed essentially in the center of the bag 10, in the direction along the length of the bag 10. As in the case of the contact points above 91,92, a first central contact point 93 is located in the flat base 65 on one side of the ribs 70 while a second central contact point 94 is placed on the opposite side of the rib 70 in the direction perpendicular to the length of the b olsa 10. The lower contact points 95,96 are placed near the second end 30 of the bag 10 in the direction along the length of the bag 10. A first lower contact point 95 is placed on the flat base 65 on one side of the ribs 70 while a second lower contact point 96 is placed on the opposite side of the rib 70 in the direction perpendicular to the length of the bag 10. In addition, of the contact points 90 described above, the ends 75,80 of the dip strip 60 which are sealed inside the first end and second end 25,30 of the bag 10 also act as contact point 90 to the extent that the immersion strip 60 is in contact with the upper wall 15. The immersion strip 60 is therefore connected to the upper wall 15 of the bag 10 on both sides of the type 50. Alternatively, the contact points 90 can also to be used instead of sealing the first end and the second end 75,80 of the dip strip 60 between the first end and the second end 25,30 of the walls 15,20. In this embodiment, the dip strip 60 would be connected only on the top wall 15 of the bag 10 through the contact points 90. Preferably, one or more of the contact points 90 would be located on either side of the peak 50. Even though six (6) contact points 90 and the anchoring of the first end and second end 75,80 of the dip strip 60 within the walls 15, 20 of the bag 10 have been disclosed here, almost any combination of points Contact 91 to 96 disclosed here would be appropriate. In fact, almost any number of contact points 90 can be used. The contact points 90 should preferably be spaced a sufficient distance in the direction along the length of the dip strip 60 from the peak 50 to In addition, there must be a sufficient distance between the respective contact points 90 to allow the fluid to enter the fluid passages 74. The fluid passages 74 of the dip strip 60 act as a straw to help extract the fluids from the bag to the extent that the dip strip 60 and the top wall 15 are in close proximity. THE APPARATUS The bag 10 of the present invention is manufactured in a manner similar to that described in US Pat. No. 6,027,438, which is incorporated herein by reference. Figures 5-6 show schematic views of an apparatus 100 for making the bag 10. The apparatus 100 is operated by one or more control systems 101. The control systems 101 include a controller 105, such as a Programmable Logic Controller (FIG. "PLC") based on standard microprocessor. The controller 105 allows the user to set the variables of the apparatus 100 such as the temperature and dwell time of the presses as described below. The controller 105 includes a standard screen, a disk drive, a keyboard, and a memory (not shown). The control systems 101 may also include a data monitor 106, such as a standard Personal Computer with a data acquisition card (not illustrated). The data monitor 106 monitors and records the temperature, strength, and dwell time of the presses as described below. The apparatus 100 operates in the form of an assembly line along a predetermined path 110. The apparatus 100 includes several rolls of material 115, loaded with the external folds 45 and the internal folds 40 to form the upper walls 15 and the lower walls. 20. The outer folds 45 and the internal folds 40 are pulled from the rolls of material 115 in the predetermined path 110 along several rollers 160 by several feed servos 170. The top wall 15 then passes through an assembly of hole punching 210. The hole punching assembly 210 preferably has a fixed upper punch 220 placed above the upper wall 15 and a vertically moving pneumatic die 230 placed under the upper wall 15 (or vice versa) . The hole-piercing assembly 210 pierces a peak receiving hole 32 in the upper wall 15. The upper wall 15 then continues to the assembly. peak insert 240 positioned along the predetermined path 110. The peak insert assembly 240 preferably includes both a pneumatic cylinder and a piston unit 250 that supports a peak 50 and moves it into the peak reception port 32. and also an upper fixed heating element 260 (or vice versa) which thermally seals the flange 55 of the spout 50 on the upper wall 15. The next station in the predetermined path 110 is an immersion strip drilling station 270. The upper and lower walls 15, 20 pass over the drilling station and dip strip 270 and below said dip strip drilling station, respectively. The dip strip drill station 270 may include two (2) identical feed assemblies, a left feed assembly 280 and a right feed assembly 285, according to the number of bags 10 manufactured at one time. The feed assemblies 280, 285 each include a reel 300 with a continuous strip of immersion strip material 290 therein. The immersion strip material 290 is unwound from the reel 300 by a reciprocating system 310. The reciprocating system 310 preferably includes a reciprocating arm 320 having a lever arm operated by pneumatic cylinder 325 and a roller 330. The material The immersion strip 290 is pulled by the shuttle arm 320 into a driven servo-roller apparatus 340 having a pair of gear-driven rollers 345. After the servo device 340 pulls a sufficient length of immersion strip material 290 from the reciprocating arm 320 the servo 340 locks the material 290 in place such that the shuttle arm 320 can pull more material 290 from the reel 300. The immersion strip material 290 is then pulled towards a drill station 350. The Drilling station 350 preferably has a vertically moving pneumatic punch 355 and a fixed die 360 (or vice versa). The piercing station 350 pierces the material at the ends 75,80 of two (2) adjacent immersion strips 60. The immersion strip material 290 is then driven in the predetermined path 110 directly below the upper wall 15 through the rollers 160. Similarly, the bottom wall 20 is manipulated in the predetermined path 110 directly below the dip strip material 290 through the rollers 160. The joined walls 15, 20 and the dip strip material 290 are they then move together along the predetermined path 110 through a side sealing device 400. The side sealing apparatus 400 may include three (3) identical pneumatic sealing units, a left side sealing unit 410, a unit Center seal 420, and a right side sealing unit 430. Sealing units 410,420,430 seal the upper and lower walls 15,20 together along various s lateral lines. These lines include the left and right side edges 35 of the bag 10. Each sealing unit 410.420.430 preferably has a top die unit operated by pneumatic cylinder 440 and a lower die unit operated by pneumatic cylinder 450. The walls 15.20 they are then advanced along the predetermined path 110 by an average servo unit 500 in a pneumatic transverse seal device 510. The transverse seal apparatus 510 preferably has an upper die unit 520 operated by pneumatic cylinder and a die unit. lower 530 operated by pneumatic cylinder. The transverse sealant 510 seals the walls 15, 20 in the direction perpendicular to the direction of travel along the predetermined path 110 along the first end and the second end 25, 30. The first end 75 of the dip strip 60 is sealed at the first end 25 of the bag and the second end 80 of the dip strip 60 is sealed at the second end 30 of the bag 10. As described above, the portion with ribs 70 of the first end and second end 75,80 of the dip strip 60 has been removed in such a way that only the flanges 68 of the flat base 65 are within the seal. The ribs 70 are removed to ensure that no excess material is present that could prevent the formation of a water tight seal or that could extend the seal cooling time. further, the removal of the ribs 70 ensures that there are no sharp edges in the seal that could puncture the bag 10. The pneumatic transverse sealing apparatus 510 may also include a fastening apparatus 575. The fastening apparatus 575 holds the dip-strip 60 between the walls 15, 20 to relieve any possible tension in the dip strip 60 while operating the transverse sealant 510. The walls 15, 20 then advance along the predetermined path 510 through a pneumatic segment sealing apparatus 580 having Preferably a top die unit 590 operated by pneumatic cylinder and a lower die unit 595 operated by pneumatic cylinder. The segment sealer 580 is designed to further heat and press the seal at the first end and second end 25,30 of the bag 10 to ensure that the plastic dip strip material 290 is fused and flattened to provide a seal enough. The walls 15, 20 then pass along the predetermined path 110 through a clamping cooling station 630. The clamping cooling station 630 has an upper clamping bar 640 and a lower clamping bar 645. minus one of the clamping bars 640,645 is cooled with water by conventional means. The fastening rods 640,645 are applied to the walls 15,20, preferably through at least one (1) pneumatic cylinder 647 in the vicinity of the first end and second end 25.30. The clamping bars 640,645 reduce the temperature of the material there. The reduction of temperature generally offers a stronger seal and allows the seal to be cut quickly in accordance with what is described below. The walls 15, 20 then pass along the predetermined path 110 through a drilling station 650. The drilling station 650 preferably has a vertical punch 660 that can be moved vertically, conventionally, and a fixed lower die 665. (or vice versa). The drill station 650 can be used to remove any excess dip strip material 290 in the area of the first end and second end 25,30. The walls 15, 20 are then passed along the predetermined path 110 through a notching station 670. The notching station 670 includes a movable notch wheel 680 that is moved in a direction perpendicular to the direction of rotation. predetermined trajectory 110 and perforates the bags 10 between the respective first end and the second end 25,30. The notching station 680 leaves the individual bags 10 connected to each other by small tabs of material. The bags 10 can then easily be separated for individual use. A fixed notch wheel or blade 685 may also be placed in the middle part of the predetermined path 110 according to the number of bags 10 manufactured at one time. The bags 10 then pass along the predetermined path through a loading servo 690 in a stacking device 700. The stacking device 700 has a series of moving rollers 710 that stack the bags 10 vertically in the can 720 or in any other conventional loading device for storage or transport. The present invention also provides an additional station, the contact point apparatus 800. The contact point apparatus 800 is positioned along the predetermined path 110 between the rollers 160 which place the dip strip material 290 under the upper wall 15 and rollers 160 that place the lower wall 20 below the upper wall 15 and below the dipping strip material 290. The contact point apparatus 800 preferably includes an upper press unit 810 operated by pneumatic cylinder and a lower die unit 820. The upper press unit 810 is movable while the lower die unit 820 is stationary (or vice versa). The upper press unit 810 is heated by conventional heating elements (not shown) and controlled by conventional thermocouples (not shown). The temperature and residence time with which the upper press unit 810 operates is controlled by the controller 105, while these variables and the applied force are monitored and recorded by the data monitor 106. The upper press unit 810 may have several heads 840 to produce the opposing contact points 90 on either side of the ribs 70. Alternatively, they can employ several press units 810. The heads 840 can be coated with rubber. The upper press unit 810 is synchronized to strike the upper wall 15 of the bag 10 to create the maximum number of contact points 90 that are desired for a given bag. Further details regarding the elements of the apparatus 10 and its use are included in US Pat. No. 6,027,438. For example, elements such as positioning sensors, film cleaners, static inductors, and brushes, according to what is described herein, can be employed in the apparatus 10. THE MANUFACTURING METHOD In use, the walls 15, 20 are pulled from the rollers 115 by feed servos 170 in the predetermined path 110. Top wall 15 passes through hole drilling station 210 where the peak receiving hole 32 is drilled. Upper wall 15 then passes through the peak insert station 240 and the peak 50 is placed within the hole 32 and the flange 55 is thermally sealed in place. As the spout 50 is inserted into the upper wall 15, the immersion strip material 290 is removed from the spool 300 by the reciprocating system 310. The length was determined from the immersion strip material 290 is measured by the servos 340 and is it advances in the drilling station 350. The section with ribs 70 of the dip strip material 290 is perforated at the first end and at the second end 75,80 of the dip strip material 290. The dip strip material 290 is then placed under the upper wall 15 along the predetermined path 110. The upper wall 15 and the dip strip material 290 are then pulled through the contact point apparatus 800. The heated upper press 810 of the apparatus of contact point 800 hits the upper wall 15 several times between the immersion strip 60 and the fixed lower die 820 pair act in such a way as to create the contact points 90. The plastic material inside the top wall 15 and the dip strip material 290 melts and fuses to form the contact points 90. Even when six (6) points of contact 90 are shown in Figure 1, almost any number can be used , shape or size of contact points 90. The lower wall 20 is then aligned with the upper wall 15 and the immersion strip material 290 along the predetermined path 110. The combined walls 15, 20 and the material material of dipping strip 290 are then advanced in the side sealer 400 where side boats 35 of the walls 15,20 are thermally sealed together. The walls 15, 20 are then pulled through the servo means 500 and into the transverse sealant 510. The transverse sealant 510 seals the first end and the second end 75, 80 of the immersion strip 60 between the upper and lower walls. 15.20. The flanges 68 of the flat base 65 of the dip strip material 290 should be flattened by approximately fifty percent (50%) to obtain a suitable seal. The walls 15, 20 are then advanced towards the segment seamer 580 where the seal is again pressed in the vicinity of the first end and second end 75,80 of the immersion strip material 290. The seal is then cooled in the station clamping cooling 630. If necessary, any excess immersion strip material 290 in the vicinity of the seal is removed by the punch 650. The bags 10 then receive notch lines through the notch station 670. The load servo 690 then loads the bags 10 into the stacking device 700 for use or for transport to the customer. USE Figure 7 shows a preferred use of the bag 10 in the form of a post-mixing beverage system with a bag in a box for supplying syrup to a subsequent mixing soda dispenser. In a use of this type, the bag 10 is placed inside a corrugated box 900. The box 900 is connected to a rear mixing jet 910 by connecting the beak 50 of the bag 10 to a syrup hose 920 having a pump 930 placed there. The syrup inside the bag 10 is evacuated under pressure. The dip strip 60 prevents the bag 10 from collapsing on itself before the bag 10 is substantially empty. In addition, since the dip strip 60 is connected to the top wall 15 of the bag 10, the fluid passages 74 within the dip strip 60 draw the syrup from the ends of the bag 10. This action of straw type provides an increased efficiency for extracting syrup from the bag 10. It will be understood that the foregoing refers only to the preferred embodiments of the present invention and that numerous changes may be made therein without departing from the spirit and scope of the invention in accordance with that defined in the following claims.

Claims (22)

1. CLAIMS A disposable container for containing and dispensing liquid comprising: a flexible bag (10) comprising an upper wall (15) and a lower bag wall (20); said upper (15) and lower bag (20) walls comprise a periphery (25,30) and a middle portion; said upper bag wall (15) has a peak (50) placed inside said middle portion of said upper bag wall (15); said peak (50) has a first side and a second side; and an immersion strip (60) fixed on said top bag wall (15) on said first side of said peak (50) and spacing of said peak (50) and fixed on said middle portion of said upper bag wall (15) on said second side of said peak (50) and spacing of said peak (50).
2. The package according to claim 1, wherein said dipping strip is fixed on said bag top wall at a predetermined distance from said peak.
3. The package according to claim 1, wherein said dip strip is further fixed on said periphery of said top bag wall on said second side of said peak.
4. The package according to claim 1, wherein said immersion strip is fixed on said periphery of said upper bag wall on said first side of said peak.
5. The package according to claim 1, wherein said dip strip is fixed on said middle portion of said top bag wall on said first side of said peak.
6. The package according to claim 1, wherein said dip strip is fixed on said periphery of said bag top wall on said first side of said peak and wherein said dip strip is further fixed on said periphery of said bag top wall. on said second side of said peak.
7. The package according to claim 1, wherein said immersion strip is fixed on said upper bag wall at a plurality of contact points.
8. The package according to claim 1, wherein said dip strip comprises a flat base and a central portion with ribs.
9. The package according to claim 8, wherein said central portion with ribs comprises essentially parallel ribs in order to offer several liquid passages.
10. The package according to claim 8, wherein said central portion with ribs faces said upper bag wall.
11. The package according to claim 8, wherein said dip strip further comprises a pair of flat ends.
12. The package according to claim 11, wherein said flat ends comprise said flat base with said central portion with ribs removed.
13. The package according to claim 11, wherein said flat ends are sealed between said bag walls at said periphery.
14. The package according to claim 8, wherein said flat wall of said immersion strip is fixed on said upper bag wall at one or more contact points.
15. 15. The package according to claim 14, wherein said point of contact or several said contact points comprises (n) a pair of upper contact points.
16. The package according to claim 14, wherein said point of contact or said several points of contact comprises (n) a pair of center contact points.
17. 17. The package according to claim 14, wherein said point of contact or said several contact points comprises (n) a pair of lower contact points.
18. 18. The package according to claim 14, wherein said point of contact or several said points comprises (n) several points of contact and where several said points of contact are spaced between them in order to allow the passage of a fluid between said several points of contact towards said dip strip.
19. The package according to claim 1, wherein said bag walls and said dip strip comprise a plastic material.
20. 20. The package according to claim 19, wherein said dip strip is fixed on said middle portion of said upper bag wall at one or more points of contact.
21. The package according to claim 20, wherein said contact points each comprise an area of fused plastic material.
22. 22. The package according to claim 1, wherein said dip strip comprises at least one elongated liquid passage there, such that said elongated liquid passage is in liquid communication with said peak as said bag progressively collapses. against said dip strip. The package according to claim 1, wherein said peak is located adjacent to said periphery at one end of said bag. The package according to claim 1, wherein said dip strip is extruded. n method for the production of a bag (10) to contain and supply a liquid, said bag comprises a first bag wall (15), a second bag wall (20), a peak (50), and an immersion strip (60), said method comprises: fixing said peak (50) on said first bag wall (15); attaching the dip strip (60) on said first bag wall (15) in at least one location spaced a predetermined distance from said peak (50); and sewing said first bag wall (15) and said second bag wall (20) on one or more peripheral edges (25.30) thereof in such a way that said bag (10) is formed. The method according to claim 25, wherein said dip strip (60) comprises a pair of ends (75,80), said method further comprising: sewing said pair of ends (75,80) of said dip strip (60). ) between said peripheral edge or said several peripheral edges (25,30) of said first bag wall (15) and said second bag wall (20).